SPIRV-Cross/reference/shaders-msl/vert/dynamic.flatten.vert
2019-09-24 14:35:25 -04:00

85 lines
1.8 KiB
GLSL

#pragma clang diagnostic ignored "-Wmissing-prototypes"
#pragma clang diagnostic ignored "-Wmissing-braces"
#include <metal_stdlib>
#include <simd/simd.h>
using namespace metal;
template<typename T, size_t Num>
struct spvUnsafeArray
{
T elements[Num ? Num : 1];
thread T& operator [] (size_t pos) thread
{
return elements[pos];
}
constexpr const thread T& operator [] (size_t pos) const thread
{
return elements[pos];
}
device T& operator [] (size_t pos) device
{
return elements[pos];
}
constexpr const device T& operator [] (size_t pos) const device
{
return elements[pos];
}
constexpr const constant T& operator [] (size_t pos) const constant
{
return elements[pos];
}
threadgroup T& operator [] (size_t pos) threadgroup
{
return elements[pos];
}
constexpr const threadgroup T& operator [] (size_t pos) const threadgroup
{
return elements[pos];
}
};
struct Light
{
packed_float3 Position;
float Radius;
float4 Color;
};
struct UBO
{
float4x4 uMVP;
spvUnsafeArray<Light, 4> lights;
};
struct main0_out
{
float4 vColor [[user(locn0)]];
float4 gl_Position [[position]];
};
struct main0_in
{
float4 aVertex [[attribute(0)]];
float3 aNormal [[attribute(1)]];
};
vertex main0_out main0(main0_in in [[stage_in]], constant UBO& _21 [[buffer(0)]])
{
main0_out out = {};
out.gl_Position = _21.uMVP * in.aVertex;
out.vColor = float4(0.0);
for (int i = 0; i < 4; i++)
{
float3 L = in.aVertex.xyz - float3(_21.lights[i].Position);
out.vColor += ((_21.lights[i].Color * fast::clamp(1.0 - (length(L) / _21.lights[i].Radius), 0.0, 1.0)) * dot(in.aNormal, normalize(L)));
}
return out;
}